Patents by Inventor Hiromu IBARAGI

Hiromu IBARAGI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Transfer unit and image forming apparatus therewith
    Patent number: 11953847
    Abstract: A transfer unit includes a first and a second roller differing in one of the axial length, volume resistivity, and hardness of their elastic layer, a first and a second bearing members rotatably supporting the metal shafts of the first and second rollers, a roller holder, and a switching mechanism. The roller holder has a first and a second bearing holding portion that hold the first and second bearing members slidably. The switching mechanism drives the roller holder to rotate such that one of the first and second rollers is arranged at a reference position at which the first or second roller is kept in pressed contact with an image carrying member to form a transfer nip. The first and second bearing members have grounding member that ground the first and second rollers respectively.
    Type: Grant
    Filed: February 10, 2023
    Date of Patent: April 9, 2024
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hiromu Ibaragi
  • TRANSFER UNIT AND IMAGE FORMING APPARATUS THEREWITH
    Publication number: 20230259054
    Abstract: A transfer unit includes a first and a second roller differing in one of the axial length, volume resistivity, and hardness of their elastic layer, a first and a second bearing members rotatably supporting the metal shafts of the first and second rollers, a roller holder, and a switching mechanism. The roller holder has a first and a second bearing holding portion that hold the first and second bearing members slidably. The switching mechanism drives the roller holder to rotate such that one of the first and second rollers is arranged at a reference position at which the first or second roller is kept in pressed contact with an image carrying member to form a transfer nip. The first and second bearing members have grounding member that ground the first and second rollers respectively.
    Type: Application
    Filed: February 10, 2023
    Publication date: August 17, 2023
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Hiromu IBARAGI